Following is a transcript of the video. Narrator: The high-fat, low-carb ketogenic diet, or "keto" for short, has become a popular way to lose weight. And while keto is proven to help you shed the ...

The ketogenic diet may raise the risk of higher cholesterol, but the protein-based eating plan has been shown to reduce mental illness symptoms in even the toughest cases. Getty Images/iStockphoto ...